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Finding the Fourth Proportional to 527,014.51, 790,521.65 and 287,330.00

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Solution

The fourth proportional to 527,014.51, 790,521.65 and 287,330.00 is: 430,994.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,014.51 : 790,521.65 = 287,330.00 : x
  2. Step 2: Convert to fraction form
    527,014.51/790,521.65 = 287,330.00/x
  3. Step 3: Cross multiply
    527,014.51x = 790,521.65 × 287,330.00
  4. Step 4: Simplify right side
    527,014.51x = 227,140,581,382.73
  5. Step 5: Solve for x
    x = 227,140,581,382.73/527,014.51
  6. Step 6: Final answer
    x = 430,994.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.